** Shares of biotech firm Alvotech ALVO.O down 9% post-market to $3.86 as it seeks equity raise

** Co kicks off $125 mln public offering and concurrent private placement of ordinary shares

** Allocation of ordinary shares between the offering and private placement yet to be determined

** It intends to use net proceeds from the transactions to fund development of its biosimilar assets, as well as working capital and general corporate purposes

** BofA, Jefferies and Evercore joint bookrunners

** ALVO shares finished up 1.7% at $4.24 on Mon, trimming YTD loss to 17%

** Reykjavík, Iceland-headquartered firm has ~312 mln shares outstanding for about $1.3 bln market cap